See Also: riebeckite(dictionary)

riebeckite (iou)



riebeckite noun. L19.
[from Emil Riebeck (d. 1885), German explorer + -ITE1.]
Mineralogy. Any of a group of sodium-containing monoclinic amphiboles, often containing magnesium, found as dark blue or black prismatic crystals, chiefly in alkaline igneous rocks, or as blue asbestos (crocidolite).